What is the capacity of a standard CD-ROM? MCQ with Answer and Explanation

Explanation:
DRAM (Dynamic RAM) uses capacitors to store bits; they leak charge and must be refreshed periodically. SRAM uses flip-flops and does not need refreshing.

Explanation:
Since one byte is strictly defined as 8 bits, a 4-byte block contains exactly $4 imes 8 = 32$ bits.

Explanation:
A write buffer holds data to be written to memory, allowing the CPU to continue execution while the write operation completes asynchronously.